Under cabinet mat



FIG. 1 is a perspective view of my new design for an under cabinet mat;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view.

The broken lines depict portions of the under cabinet mat that form no part of the claimed design. 

I claim the ornamental design for an under cabinet mat, as shown and described. 